#define kCRL2DArrayEmptyKey @"kCRL2DArrayEmptyKey"

#import <Foundation/Foundation.h>
#import "Box.h"

@interface TwoDArray : NSObject

- (id) initWithRows:(NSUInteger)x columns:(NSUInteger)y;

- (BOOL) insertObject:(id)data atRow:(NSUInteger)x column:(NSUInteger)y;

- (Box*) objectAtRow:(NSUInteger)x column:(NSUInteger)y;

- (void) removeAllObjects;

@end